Equilibrium isotherm studies for the uptake of cadmium and lead ions onto sugar beet pulp

Pehlivan, Erol; Yanık, B.H.; Ahmetli, Gülnare; Pehlivan, Mustafa

doi:10.1016/j.biortech.2007.07.052

Cited by 204 publications

(111 citation statements)

References 45 publications

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“…The use of agriculture byproducts such as coconut fruit (Anirudhan and Sreekumari 2011), nuts apricot (Tsibranska and Hristova 2010), beet pulp (Pehlivan et al 2008), stems of tea (Amarasinghe and Williams 2007), rice husk (Bakircioglu et al 2003;Wong et al 2003), pentandra hulls (Madhava-Raoa et al 2006)and olive stones-waste (Alslaibi et al 2015;Baccar et al 2009;Gharib and Ouederni 2005), which are inexpensive, abundantly available, and renewable materials, as precursor for activated carbon production, reduces adsorption processing costs (Bailey et al 1999). The adsorption process offers flexibility in design and operation and in many cases will produce high-quality treated effluent (Fu and Wang 2011;Cui et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous adsorption behavior of heavy metals onto microporous olive stones activated carbon: analysis of metal interactions

Bohli

Ouederni

Villaescusa

2017

Euro-Mediterr J Environ Integr

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The present work reports the synergistic and inhibitory adsorption effects involved in the multicomponent adsorption of heavy metal ions (Cu(II), Ni(II), and Cd(II)) from binary systems using chemically olive stone activated carbon (COSAC) as adsorbent. In order to evaluate the adsorption capacity of COSAC to remove studied heavy metals, adsorption of metal ions in single and binary systems were conducted. Kinetics adsorption rates in binary systems are very fast as compared to that in single ones and well represented by the pseudo second-order. Langmuir and Sips model fit mono-solute adsorption isotherms and the maximum adsorption capacity of COSAC decreased in the following order: Cd(II) [ Ni(II) [ Cu(II). In binary equilibrium systems, the effect of initial concentration of interfering metal ions on the removal of target ones was studied. Different mutual interactions between metal ions dealing with the decrease and the enhancement of inhibitory and synergetic effects were detected. Results showed that the effects on the adsorption of the metal ions in binary mixture strongly depend on the initial concentration of both metal ions in the solution. In most of the scenarios studied, the total amount of metal ions adsorbed was higher than the sum of the ones obtained in single solutions, suggesting synergetic interactions between the two metal ions. This study proves that COSAC is an effective adsorbent for the removal of heavy metals from multicomponent solutions.

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Section: Introductionmentioning

confidence: 99%

Simultaneous adsorption behavior of heavy metals onto microporous olive stones activated carbon: analysis of metal interactions

Bohli

Ouederni

Villaescusa

2017

Euro-Mediterr J Environ Integr

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“…Most of these are agriculture wastes or by-products, which are considered to be low value products. Different types of biomass have been investigated for their capacity to remove heavy metals from aqueous solutions with a considerable degree of success [4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Kinetic and equilibrium study for the sorption of Pb(II) ions from aqueous phase by water hyacinth (<i>Eichhornia crassipes</i>)

Murithi¹,

Onindo²,

Muthakia³

2012

Bull. Chem. Soc. Eth.

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ABSTRACT. This paper reports the kinetic and equilibrium studies of Eichhornia crassipes root biomass as a biosorbent for Pb(II) ions from aqueous system. Batch adsorption studies were carried out to examine the influence of various parameters such as the pH, contact time, adsorbent dose, initial metal ion concentration, temperature and agitation speed on the metal ion uptake. Uptake of Pb(II) ions on the E. crassipes roots showed a pH-dependent profile. The maximum metal uptake values were 164 µg/mL. Langmuir model fitted the experimental sorption equilibrium data with a good fit (R 2 > 0.99). The biosorption kinetics was described by the pseudo-second-order model (R 2 > 0.99).

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“…The Freundlich isotherm model assumes neither homogeneous site energies nor limited levels of sorption. 48 This model is the earliest known empirical equation, and is shown to be consistent with the exponential distribution of active centers, characteristic of heterogeneous surfaces, log qe = log Kf + 1/nlog Ce.…”

Section: Sorption Isotherms and Kinetic Studiesmentioning

confidence: 61%

Solid-Phase Extractors Based on 8-Aminoquinoline and 2-Aminopyridine Covalently Bonded to Silica Gel for the Selective Separation and Determination of Calcium in Natural Water and Pharmaceutical Samples

Soliman¹,

Ahmed

2010

ANAL. SCI.

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Equilibrium isotherm studies for the uptake of cadmium and lead ions onto sugar beet pulp

Cited by 204 publications

References 45 publications

Simultaneous adsorption behavior of heavy metals onto microporous olive stones activated carbon: analysis of metal interactions

Simultaneous adsorption behavior of heavy metals onto microporous olive stones activated carbon: analysis of metal interactions

Kinetic and equilibrium study for the sorption of Pb(II) ions from aqueous phase by water hyacinth (<i>Eichhornia crassipes</i>)

Solid-Phase Extractors Based on 8-Aminoquinoline and 2-Aminopyridine Covalently Bonded to Silica Gel for the Selective Separation and Determination of Calcium in Natural Water and Pharmaceutical Samples

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